Historical ZQ1 blocks should have their state root hash set to zero

[JamesHinshelwood]

We don't know the state for these blocks, so lets not pretend we do.

[JamesHinshelwood]

Also we shouldn't try to execute transactions against these 'null' states. The results are meaningless and waste our time.

[DrZoltanFazekas]

Agree, eth_call and eth_estimateGas shall also not try to execute code on the unknown state of old ZQ1 blocks

[86667]

We are seeing a lot of API node crashes at the moment which I believe could be fixed in this ticket. As well as zeroing the state root for ZQ1 blocks we should also fix such that balance checks in block trace re-executions do not throw. Details:

API calls ots_getInternalOperations and ots_traceTransaction often throw insufficient balance: zilliqa/src/exec.rs:1938:49 which causes an unwrap() on PoisonError.

For an example, search protontestnet API node logs for ERROR logs.